About slashkits

slashkits is a collection of small browser tools that each do one everyday job well: a countdown timer, a stopwatch, an alarm clock and printable calendars, with more on the way.

Every tool is free, needs no account and runs entirely in your browser. Nothing you type or time is sent to a server. The tools are available in English, Japanese, French, German, Spanish, Italian, Dutch, Swedish, Danish, Norwegian, Finnish and Polish.

We care about the details: accurate timing that survives background tabs and reloads, readable full-screen displays, keyboard shortcuts, clean print layouts and pages that load fast on any phone.

Found a bug, a translation mistake or a missing holiday? Tell us and we'll fix it.